Method and device for fume purification treatment in waste incineration

A flue gas purification and treatment method technology, applied in chemical instruments and methods, separation methods, dispersed particle filtration, etc., can solve problems such as substandard flue gas emissions, and achieve the effects of low operating cost, convenient operation and management, and long service life.

Inactive Publication Date: 2012-10-17
EVERBRIGHT ENVIRONMENTAL PROTECTION TECHCAL DEV BEIJING +3
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Problems solved by technology

In addition, in the petroleum, chemical, and other industries, there are problems of non-compliance with flue gas emissions. Therefore, not only in the field of waste incineration, flue g...

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  • Method and device for fume purification treatment in waste incineration
  • Method and device for fume purification treatment in waste incineration
  • Method and device for fume purification treatment in waste incineration

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Embodiment Construction

[0029] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without one or more of these details. In other examples, some technical features known in the art are not described in order to avoid confusion with the present invention.

[0030] During the normal operation of the waste incinerator, it produces toxic and harmful substances such as acidic substances, dioxins, dust, etc., and the flue gas needs to be purified before it can be discharged into the atmosphere. The method of the present invention comprises 5 steps of denitrification, semi-dry deacidification, dry deacidification, activated carbon adsorption and bag dust removal, and the treatment process is as follows:

[0031] During the design and operation of the boiler, the temperature of the furnace is guaranteed to be above 850°C...

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Abstract

The invention relates to a method and a device for fume purification treatment in waste incineration. The method comprises steps of denitration, semidry-method deacidification, dry-method deacidification, activated carbon adsorption and cloth-bag dust removing; in the semidry-method deacidification step, a temperature reducing water system which is independent from lime slurry is adopted to control the deacidification reaction temperature to be 140-160 DEG C; and the dry lime powder for the dry-method deacidification and the activated carbon powder for the activated carbon absorption can be injected prior to the semidry-method deacidification or injected after the semidry-method deacidification. The device aims at analyzing and improving the prior art and further inspecting after the improvement; indexes in fume discharge can reach the standard 2000 of the European Union continuously and stably; furthermore, the investment and operation cost are controllable and lower; the process is simple; the operation management is convenient; and no secondary liquid pollution is caused.

Description

technical field [0001] The invention relates to the field of flue gas treatment, in particular, the invention relates to a flue gas purification treatment method and device for garbage incineration. Background technique [0002] my country has a large population. With the advancement of urbanization, the amount of domestic waste generated is not only a large base, but also growing rapidly. However, my country still faces a big gap in its ability to treat domestic waste in a harmless manner. The reduction, harmlessness, and recycling of domestic waste are major environmental problems at present and in the future. The technology of domestic waste incineration and power generation can significantly reduce the amount of domestic waste, and at the same time, it can use waste heat to generate electricity to realize resource utilization. In addition, It can also control the secondary pollution to the environment, and has developed rapidly in my country. However, the flue gas emitte...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/79B01D53/81B01D53/80B01D53/02B01D53/56B01D53/68B01D53/50B01D46/02
Inventor 杨仕桥陈涛温俊明刘晓峰胡利华刘玉坤付志臣胡建民邵哲如张怀玉王雪炎唐侠
Owner EVERBRIGHT ENVIRONMENTAL PROTECTION TECHCAL DEV BEIJING
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